1 HFK 2-(1,3-benzoxazol-2-ylamino)spiro[1,6,7,8-tetrahydroquinazoline-4,1'-cyclohexane]-5-one 1.000 2 QV2 2-(1,3-benzoxazol-2-ylamino)spiro[1,6,7,8-tetrahydroquinazoline-4,1'-cyclopentane]-5-one 0.889 3 4QI (4r)-2-[(1,3-benzoxazol-2-yl)amino]-4-(4-chloro-1h-pyrazol-5-yl)-4,6,7,8-tetrahydroquinazolin-5(1h)-one 0.828